So I was looking through missing items from the Complete Collection using my Double Deluxe edition of the game, and it turns out that the European version of Double Deluxe includes some items that were not available in the American versions of the game;
- McDonalds green bed set, and the stall
- Banyan tree
- Intel computer
- Exechair and and Office Desk

However, the European version includes a forgotten AOL Wicker and Modern set which was apparently given out in a lost promotion. I searched everywhere for a backup, but I couldn't find one. This leads me to believe they weren't included in the American version of the Double Deluxe.

Then there's the Europe-exclusive Triple Deluxe, where I asked someone on discord if they remember seeing the items, but they weren't on Triple Deluxe.

I tried searching for a complete list of what's included in the American Double Deluxe, folders and all (found in The Sims/Downloads), but I couldn't find anything substantial. Perhaps someone with that copy has a list?

UPDATE: I was informed it's included in the American copy of the Complete Collection, so that's one thing found.

Supposedly according to the Sims Wiki, the Complete Collection is missing several Livin' Large and Deluxe Edition skins, and some downloadable sets that were included, including the Green Bedroom Set, are not complete. I wish there was a complete guide to the exact missing items and skins. I started a talk page five and a half years ago and got only one reply from an anonymous user who downloaded the Get Cool Stuff packs from The Sims Depot , saying that these packages are missing from the Complete Collection:

DoubleDeluxe1, DoubleDeluxe2, DoubleDeluxe3, GreenBedroomSet(McDonalds bedroom set), IntelComputer_international, McFoodCart_International, PepsiMachine1, PetSkinsPack1, PetSkinsPack2

That was five and a half years ago, and this talk page didn't go much further, but since Legacy Collection is a re-release of Complete Collection, I wonder what skins and objects from Complete Collection didn't survive the re-release? Could anybody who has access to Double Deluxe, Complete Collection and the official downloads expand on this further?